John blake kendall



(No Model.)

J. B. KENDALL. CARTRIDGE.

No. 588,443. Patented Aug. 17,1897.

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UNITED STATES PATENT Urrrcn.

JOHN BLAKE KENDALL, OF IVASI-IINGTON, DISTRICT OF COLUMBIA.

CARTRIDGE.

SPECIFICATION formingpart of Letters Patent No. 588,443, dated August17, 1897. Application filed April 5, 1897. Serial No. 630,759. (Nomodel.)

To all whom it may concern.-

Beit known that 1, JOHN BLAKE KENDALL,

of'Washington, in the District of Columbia,

have invented certain new and useful Improvements in Cartridges; and Ido hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,in which Figure 1 is a view, partly in side elevation and longitudinalsection, of a cartridge with my invention applied; and Fig. 2 is adetail perspective view of my igniter-support.

Letters of like name and kind refer to like parts in each of thefigures.

The object of my invention is to provide an efiicient and inexpensivesupport for the igniting-powder used in cartridges employed withordnance; and to this end said invention consists in theigniting-support and in the combination of the same with a cartridge,

substantially as hereinafter specified.

In constructing cartridges for use with ordnance it is customary, owingto the comparative slowness of the ignition of the powder charge used,to employ anigniter A, of more quickly ignitible powder, arranged inproximity to the primer B, so as to be ignited by the latter when fired.Such igniter is inclosed in a suitable bag or envelop of cloth 0, and itis necessary to hold or support it to keep it in position relative tothe primer. For this purpose there is employed a thin disk D, that isplaced within the cartridge-case E against the head F thereof, itsdiameter being such that it snugly fits the case. The

. cartridge shown being a central-fire one, the

disk D is perforated at its center by a round opening 01 in line withthe primer B, and over said opening the igniter A is held by having itsenvelop glued or otherwise attached to the face of the disk D. Theperiphery of the disk is beveled or chamfered to conform to a fillet inthe corner of the case, and the wall of the opening d is similarlyshaped to fit a fillet or projection on the head around the primer, butof course these features are merely adaptations of the disk to theformation of the cartridge, and hence may be and will be varied to suitvariations in the latter.

It is desirable that the disk D shall be of little Weight and mostinexpensive of manufacture, and the material best meeting theserequirements that I have found after investigation and experiment iswood-pulp, which is molded or pressed to the desired shape. Pulp ofother material than woodas, for example, cotton or linen1nay beemployed, but I prefer wood-pulp.

\Vith the igniter A attached to the disk D and the latter placed in thecartridge-case against the head Fit will be plain that neither inplacing the charge G within the case around and over the igniter norsubsequently can the igniter be accidentally displaced from the desiredposition relative to the primer.

As a projection on the case-head around the primer is usually present incartridges, I prefer to form the disk-openin g (Z to fit suchprojection, as the latter thus serves to fix and hold the disk,with theattached igniter,firmly in place, even though the diameter of the diskbe so much less than the internal diameter of the case that the diskwill derive no support from the latter. It is to be understood, however,that this is merely an expression of preference in the construction ofthe disk, and is not to be taken as a restriction of the scope of theinvention, for the form and size of the disk may be varied as occasionmay suggest or require without departure from the spirit of theinvention.

Having thus described my invention, What I claim is- 1. An ignitersupport or holder for cartridges made of pulp formed to shape, andhaving an opening to closely fit a projection on the cartridge-casehead, arou nd the primer, substantially as and for the purposespecified.

2. In a cartridge, the combination of the case, the charge therein, aprimer, an igniter adjacent to the latter, and within the charge, and anigniter-support, composed of a suitably-shaped body of pulp, over anopening in which, adjacent to the primer, the igniter is placed and towhich it is secured, said open ing having such size as to closely fit aprojection on the cartridgecase head, substantially as and for thepurpose set forth.

3. In a cartridge, the combination of the case, the charge, a primer, anigniter adjacent-t0 the latter, and a disk of pulp closely fitting thecase, and having an opening, over which the igniter is placed, whichopening closely fits & projection on the cartridge-case 5 head,substantially as and forthe purpose set forth.

In testimony that I claim the foregoing I JOHN BLAKE KENDALL.

Witnesses:

CHAS. J. WILLIAMSON, HENRY C. HAZARD.

